Multicolor-weft-replenishing mechanism



Oct. 1,-192'9.I w', H- WAKEFIELD 1,730,024

MULTICOLORv WEFT REPLENISHING MECHANISM Filed Aug. 25, 1927 Patented Oct. 1, 1929 UNITED STATES PATENT,5 OFFICE WALTER H. WAKEFIELD, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM VOIRKS, OF WORCESTER, MASSACHUSETTS, .A CORPORATION OF MASSACHUSETTS MULTICOLOR-WEFT-REPLENISHING- MECHANISM Application led August 25, 1927. Serial No'. 215,483.

rIhis invention relates to multicolor weft replenishing mechanism of the style employing the so-ca-lled stationery magazinev and it is the general object of the invention to simplify the placing of the bobbins in the magazine and securing the free ends thereof to a thread` holder.

As ordinarily made the magazines of multicolor weft replenishing mechanisms have a series of parallel vertical stacks of bobbins and the free ends of the weft extending from the bobbins are wound around a thread holder so that at the time of transfer the shuttle eye may be threaded. The outside plate of the magazine is customarily made with a slot between two stacks of bobbins and a vertical rod parallel to the slot affords the means for separating the threads of one stack of bobbins from those of the adjacent stack. This method is used in preference to providing the outside plate with a separate slot for each stack of bobbins as this latter construction has been found to weaken the outer plate of the magazine to an undesirable extent and to make the casting and machining of the same more difficult.

The method of supporting the thread separating rods which has gone into general use is that set forth in patent to Ryon No. 1,495,717. Reference t0 this patent will show that the upper part of the outer plate'of the magazine has openings therein through which the butt end of the bobbin is passed, the bobbin's of one stack being passed to one side of the rod and the bobbins of the other stack passing through the opening of the other side of the rod. Because of the fact that it is necessary in the structure set forth in said patent to support the rods at their upper ends it is not possible to place the bobbins into their stacks by a downward motion from above the magazine and it is an important object of my present invention to provide means whereby the separating rods y may be supported from their lower ends and the outer plate of the magazine made in several parts so that the slots opposite the rods open upwardly to permit insertion of the bobbins into the magazine by a simple downward motion..

It is a further object of my present invention to combine the thread separating rods with a thread holder, the ends trailing from the bobbins extending around the rods and being led to the thread holder which supports said rods.

With these and other obj ects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings, wherein I have shown a convenient embodiment of my invention, i

Fig. 1 is a side elevation of a multicolor weft replenishing mechanism having my inventionapplied thereto,

Fig. 2 is a rear' elevation taken in the di-l rection of arrow 27 Fig. 1, certain parts being shown in section, and

Fig. 3 is a top plan view taken in the direction of arrow 3, Fig.r1.

Referring to the drawings I have indicated the loom frame 10 as supporting the inside plate 11 of a multicolor weft replenishing mechanism of the type set forth in patent to Ryon 1,030,748. Said plate is provided with a plurality of vertically extending guideways 12 to receive bobbins B. Extending from the plate 11 are tie' rods 13 whichsupport outside plate units 14, 15, and 16, respectively, shown clearly in Figs. 1 and 8. The space between sections ltand 15 define a vertical slot 17 while the space' between sections 15 and 16 define a second vertical slot 18. Said slots are disposed between guideways 19 vfor the tips of the bobbins, slot 17 lying intermediate the two guides 19 on the left hand side of the magazine while slot 18 lies between the tipped guideways on the right of the magazine. The upper ends of the slots 17 and 18 areopen in the manner set forth in patent to Wyman No. 987,816. The guideways for yielding. supports 2O are provided at the bottom of the magazine and hold the bobbin about to be transferred above the shuttle when the lay is in its extreme forward position. The matter thus far described may be as set forth in the aforestaid Patents Nos. 1,030,748 and 987,816.

As set forth in Ryon Patent No. 1,495,717 the threads of the bobbin which extend through theslots must be separated so that they will not become entangled as'the bobbins move downwardly from the top of the magazine toward transferring position. This same condition occurs with the magazine set forth herein but as shown in the drawings I support the rods 30 at their lower ends, said support being in the form of a thread holder 31 which has a foot 32 to be secured to one or another of the sections of the outer plate, preferably the central section 15. Each rod extends parallel to its corresponding slot and at the lower end thereof is bent as at 33 to extend toward the outer end 34: of the thread holder.r Screws 35 hold the rods in proper adjusted angular position in the end 34 so that the upright portions of said rods may be adjusted relatively to the slots. Said rods are both the same and therefore oneform of rod only need be provided.

The thread holder is provided with a downwardly extending portion 36 and the bends 33 in the rods occur adj acentl the curved lower portions of the slots 17 and 18. r1`he thread ends E from the bobbins in the outer compartments will be led from the outer sides of the separating rods to a holding pin el() around which they will be wound while the trailing ends from the bobbins of the inner compartments will be led so as ultimately to travel between the bent part of the rod and the inclined portion 36 of the thread holder, the ends from the inner sets of bobbins also being wound around the pin 40. As the bobbins descend in the magazine their threads will be held in spaced relation so as not to be entangled with each other.

From the foregoing it will be seen that 1 have provided a simple form of separator for threads extending from the bobbins toward the thread holder, the slots parallel to the rods being open at the upper ends so that the bobbins may be placed in a downward position, the bobbin being moved downward from the dot and dash position and the trailing end thereof being led to the proper side of the corresponding separator rod. Said rods eX- tend upwardly slightly above the sections 14, 15 and 16 so as to facilitate separation of the threads. It will further be seen that 1 have provided a combined thread holderand separator with rods which may bey adjusted angularly with respect to the thread holder to assume proper position with regard to the thread slots. y

Having thus described my invention it will be apparent that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and 1 do not wish to be limited to the details herein disclosed, but what 1 claim is:

1. 1n a weft replenishing mechanism for looms having means to support a pair of parallel vertical stacks of bobbins, said means having a slot open at the upper end thereof to receive the threads extending from the bobbins, a thread holder for the ends of thread extending from bobbins in the replenishing mechanism, said holder being at the lower end of the replenishing mechanism, and rods secured to the thread holder and extending upwardly therefrom and having portions parallel to and spaced from the slot, the upper end of the rod being free and extending above 'the end of the adjacent slot. l i

2. ln a weft replenishing mechanism for looms having means to support a pair of parallel vertical stacks of bobbins, said means, having a slot open at the upper end thereof to receive the threadseiitending from the bobbins, a thread holder to receive the ends of filling extending from the bobbins, and

va rod heldv to the thread holder near the lower .ond of the replenishing mechanism yfor adjustable angular movement in said thread holder? said rod having a yportion to extend upwardly parallel to and spaced from the slot and the upper end of the rod beingl free.

3. A. thread holder unit for a multicolor magazine having a slot therein for the passa of weft ends extending from the bobbins, thread guide rod forming a part of the unit, said unit comprising a thread holder to be secured to the magazine vand having secured to the thread holder and angularly adjustable thereon and extending upwardly therefrom ,said rod, a portion of which is parallel to the slot when said thread holder is in position, said rod tobe movable to a plurality of positions parallel to but at different distances from the slot.

1. In a weft replenishing mechanism for looms having means to support two pairs of vertical stacls of bobbins, said means having a slot for each pair of stacks, each slot being open at its upper end and adapted to receive the threads from the bobbins of the corresponding stack, a pair of thread, separating' rods, one for each slot, and means to support said rods at their lower ends at a point intermediate the slots, the means being so disposed that a thread extending from a bobbin moving from any' of the stacks towardA transfer position will be unobstructed by said means to pass thereunder.

5. 1n a weft replenishing mechanism for looms having means to support two pairs of vertical stacks of bobbins, said means havingv a slot for each pair of stacks, each slot being open at its upper end and adapted to reeeive the threads from the bobbins of the corresponding stack7 a thread holder extending from the replenishing mechanism intermediate the slots, and thread separating rods secured at their lower ends to the thread holder at a point intermediate the slots, the thread holder being disposed intermediate the slots so that a thread from a bobbin moving Jfrom any of the stacks toward transfer position will move under said holder and be unobstructed thereby.

6. In a weft replenishing mechanism for looms having means to support two pairs of vertical stacks of bobbins, said means having a slot for each pair of stacks, each slot being open at its upper end and adapted to receive the threads from the bobbins of the corresponding stack, a thread holder secured to the replenishing mechanism intermediate the slots and located at the lower end of the slots, and thread separating rods secured to the thread holder at parts intermediate the slots and extending upwardly substantially parallel to the slots, said rods being free at their upper ends, the thread holder being disposed intermediate the slots so that a thread from a bobbin moving from any of the stacks toward transfer position will move under said holder and be unobstructed thereby. e

7. A thread holding unit for a weft replenishing mechanism having a pair of spaced substantially parallel thread receiving slots, said unit comprising a foot to be secured to the magazine intermediate the slots and said holder having an outwardly extending portion to which are secured a pair of upwardly extending thread separating rods a portion of each of which is parallel to one of the slots when the thread holder is in position, one rod lying on one side and the other rod lying on the other side of the extending portion, the thread holder being disposed intermediate the slots so that a thread from a bobbin moving from any of the stacks toward transfer position will move under said holder and be unobstructed thereby.

ln testimony whereof I have hereunto atHXed my signature.

WALTER H. WAKEFIELD. 

